Accumulating mechanism for adding-machines.



1. P. HUNTER m KUNTZ'LER. ACCUMULATING MECHANISM FOR ADDlNG MACHINES.

APLICA1LIQN HLED JUNE 30.1908.

Patented Mar. 28, 1916.

2 SHEETS-SHEET I.

A 9 M Zak/$375k: w v t ad W i;

iforny 1. P. HUNTER & H. KUNTZLER. ACCUMULATING MECHANiSM FOR ADDING MACHINES.

Patented Mar. 28., 1918.

2 SHEETS-SHEET 2.

APPLICATION FILED JUNE 30, i908 UNITED snares PATEN ornron.

Jenn r. HUNTER, or WILKEs-BARRE, AND

SYLVANIA, ASSIGNORS, BY nInEorANn COMPANY, A CORPORATION or rENNsr- HEE RY Kuirrz'LEn, on KINGSTON, PENN- MESNE ASSIGNMENTS, TO ADDER MACHINE LVANIA.

ACCUMULATING ,MECHANISM FOR ADDING-MACHINES.

Specification of Letters Patent.

Patented Mar. 28, 1916.

Application filed J'ime B0, 1908. Serial No. 441,231.

chines, of which the following is a specification.

This invention relates toadding machines and its novelty consists in the construction and adaptation of the parts as will be more fully hereinafter pointed out.

Specifically, it is an improvement upon the well known Wales adding machine, the accumulating mechanism of which is described and claimed in Letters Patent of the United States No. 745539, issued Dec. 1, 1903, and N 0. 797032, issued Aug. 15, 1905. In these patents the accumulation is shown as being effected on the machine by the cooperation with the numeral wheels provided with pinions of rack bars adapted to oscillate on vibrating arms provided for that purpose and actuated from the. main shaft of the machine.

The purpose of our invention is to provide mechanism for actuating the numeral wheels which does not possess the disadvantages stated, which permits the use of relatively coarse teeth'and secures accurate relative movements of the actuating mechanism and the numeral wheel and obviates the necessity of usingany kind of an overrotation preventer when the .numeral wheel is normally actuated in the usual operation of the machine.

In the drawings, Figure 1 is a side elevation of a portion of the frame of anadding machine upon which is mounted a series of mechanical elements embodying our invention, the parts being shown in their normal position when the main shaft has not been vibrated Fig. 2 is'a similar view of the same parts after the main shaft has been vibrated forward and partly backward.

In the drawings, 1 is the frame of the machine, 2 is the main shaft adapted to oscillate in suitable hearings in the frame 1 andactuated by a manually operated handle (not shown) or in any other suitable mam ner. I

3 is a segment lever mounted on the shaft 2 and provided with a stop foot e1 adapted to engage a fixed part of the frame 1 (not shown).

Mounted on the shaft 2 is a crank 5 carrying a roller 6 which runs in a slot 7 of a lever 8 which is secured at its upper end to r a rock shaft 9 arranged across the frame of the machine. Arms 10 depend from the shaft 9 and at their lower ends support a' restoring rod 11.- A transverse shaft 12 supported in suitable bearings in the frame 1 carries elbow levers 13, one for each denominational series and each loosely mounted on the shaft 12 and each yieldingly con nected from its upper arm 14 through a draft. spring 15 to the restoring rod 11. The lower and rearwardly projecting arm 16 of the elbow 13 coiiperates with the printing mechanism and forms no part of this invention. To each arm 14 is pivoted a control bar 17 which extends forwardly in the frame and the movement of which in that direction is limited by stops 32 set up by the key system in the same manner as the rack bars in. the former styles of this machine shown and described in the Letters Patent of the United States, above referred to.

Each bar 17 has a depending projection 18 which is adapted to be engaged by the restoring rod 11. A gear segment 20 is loosely mounted on a cross-shaft 21. Bar 17 is shown connected to segment gear 20 by means of a pin 19 which is fixed in said bar'and which is adapted to engage a slot 23 in segment gear 20. A spring 22 connected at one end to gear 20 and secured at its other end to a fixed point in the machine serves to "maintain gear 20 under; constant tension so that the rear edge of slot 23 'is in constant engagement with the pin 10. Ifhe of this invention, may be so disposed that the said carrying mechanism will engage segment gear 20 and readjust its relation to bar 17 to the extent of one integer. The upper edge of the gear 20 is provided with teeth 24: adapted to mesh with the teeth 25 mounted to rotate on a common shaft 28 which is supported in suitable bearings and which bearings are adapted. to be raised and lowered in unison with the operation of the other parts of the mechanism, by appropriate means indicated at 29 but. which is not otherwise shown in this application,

as it forms no part'of the present invention.

Fixedly mounted above such numeral wheel is a detent 30 provided with depending teeth 31 adapted to be engaged by the teeth 25 when the numeral wheel system is raised.

It will be understood that the key board system adapted to co'ciperate with the described mechanism is the one common in the Wales machine and described for instance in Patent No. 745539.

In the operation of the machine an item is enumerated on the key board in the usual manner by the appropriate keys. The depressed keys serve to move to their proper positions thecorresponding stops, one of which is indicated at 32. Themain shaft.

2 is then oscillated toward the operator who stands at the front of the machine. This moves the crank 5, the roller 6 and, through the latter, the lever S which in turn rocks the shaft 9 and swings the bar 11 forward. The draft spring 15'thus stretched oscillates the elbow 13 and moves the control bar 17 until it contacts with the stop 32 and its further forward movement ceases. The further movement of the bar 11, if any takes place, merely stretches the spring 15 with out affecting the position of the. control bar 17. Simultaneously with the movement of the control bar 17 its pin 19 in moving. forward has permitted the segment gear 20 to rotate on the shaft 21 under tension of the spring 22, the extent of its movement being governed by that of the control bar 17 and determined by the-particular key which has been depressed to set the stop 32. The main shaft is now atthe extreme end of. its forward stroke and the crank 5 and lever 8 are in the positions indicated in dotted outline in Fig. 2. In the meantime, by the appropriate mechanism (above referred to butnot described) the numeral shaft 28 has been lowered and all of the numeral wheel pinions 26 are in mesh with their respective segments 20, as shown in Fig. 2. and have been moved out of engagement with their respective detents 30. On the reverse stroke of the main shaft, the lever 8 is moved and the restoring rod 11 is moved against the edges of vated; and the teeth on the segment gears 20 serve a similar purpose when the numeral wheel shaft is lowered, therefore no overrotation of the numeral wheels is possible.

When a new item is enumerated on the key board the cycle of operations above referred to is repeated.

By this construction the number of parts is reduced and their manufacture simplified. Relatively coarse teeth may be employed on the numeral wheel pinions and the danger of an inaccurate engagement with the actuating gear is avoided, the detents are fixed,

friction is reduced and accuracy ispromoted and theuse'of a separate pinion on the numeral wheel to engage an over rotation preventer or nositioner is avoided.

What we claim as new is 1. In an adding machine, a shaft, and

pinions mounted upon the shaft, actuating means for said pinions comprising gear segments located beneath said pinions and adapted to be oscillated on an axis lying in a vertical plane with the said shaft, substantially as described.

2. In combination, parallel shafts, an arm mounted upon one shaft, a gear segment mounted upon the second shaft, a bar connecting the said arm and said segment together and controlling the movement of said arm and said segment upon their respective shafts, and means adapted to govern the movement of the bar, substantially as described.

3. In an adding machine, parallel shafts lying in a vertical'plane, pinions mounted upon the upper shaft, corresponding gear segments mounted upon the lower shaft, the said segments being adapted to oscillate upon their shaft nd to engage said pinions,

substantially as described.

4. In an adding machine, parallel shafts, a gear segment on one shaft, an arm on the 'second shaft, in combination with a link joining the said segment and arm together whereby the segment and arm may have a common movement.

5. In an adding machine, parallel shafts, I

a gear segment on one shaft, an arm-on the second shaft, 1n combinatlon wlth a llIlk joining the said segment and arm together whereby the segment and arm may have a.

common movement, the connection between the link and the segment being such as to permit a relative movement of the segment to the link in a carrying operation.

6. In an adding machine, parallel shafts, a gear segment on one shaft, an arm on the second shaft, in combination with a link attached to the segment and arm at points sub-- a gear segment on one shaft, an arm on the.

second shaft; and connections between the said arm and segment whereby they may have a common parallel movement.

10. In an adding machine, parallel shafts lying in a vertical plane, pinions mounted upon the upper shaft, corresponding gear segments mounted upon the lower shaft and adapted to engage the said pinions, a third shaft, located substantially in a horizontal plane with the lower shaft, arms carried by the third shaft, links connecting the respective arms and segments together, whereby each pair of segments and arms have a common movement together. r

11. In an adding machine, parallel shafts lying in a vertical plane, pinions mounted upon the upper shaft, corresponding gear segments mounted upon the lower shaft and adapted to engage the said pinions, a third shaft, located substantially in the horizontal plane ofthe lower shaft, arms carried by the third shaft, links connecting the respective arms and segments together, and controlling the movement of the same, means adapted to cause the movement of the links, and means adapted to govern the movement of the. links, substantially as described.

12. In a calculating machine, the combination with a drive shaft; of parallel shafts arranged in a vertical plane, pinions mounted on one of said shafts; segmental gears ar ranged on the other of said shafts and with which the pinionsare adapted to be engaged and disengaged; means to rotate the gears,

includin rockin'g arms; means connecting the rockmg arms and the drive shaft; control bars pivotally connected to said rocking arms and to said gears, respectively; and means to.variously regulate the length of travel of the control bars, to vary the angle of rotation of the corresponding pinions when engaged with said bars.

13. In a calculating machine, the combination of a pinion; a segmental gear with which the pinion is engaged and disengaged; a rocking arm; and a control bar pivotallyconnected to the rocking arm and to the gear, respectively, and adapted to arrest the travel of said gear. 14. In an adding machine; a shaft; and pinions mounted upon the shaft; actuating means for said pinions, including gear segments located beneath said pinions and adapted to be oscillated on an axis lying in a vertical plane with the said shaft;,said pinions adapted to have a straight line movement into and out of engagement with the segments.

Witness our hands this 27th day of June,

1908, at New York, N. .Y.

- JOHN P. HI TER. HENRY K NTZLER. Witnesses: v

HERMAN MEYER,

WILLIAM R..BAIRD. 

